This is no surprise to me, but it puts things in perspective just a bit...Mouser: pay special attention to #36

I looked at 36

Spoiler

36. One of the best ways to raise money for a charity is to have a free dinner for a lot of people and have an empty envelope tucked under their plate... for the express purpose... of making whatever size donation they want.

At the last charity dinner I attended I thought the envelope was intended for me to secrete the fish bones

I briefly attended a few local Mycologist Club meetings and they mentioned that they pulled in more cash at their last annual Wild Mushroom show after going from a $2.00 admission to a "donate to the club" admission. Several times when I've gone to a restaurant with a large group of people, we were hit with a 15% gratuity. None of us ever had a problem with it, but discussing it later, we concluded they would have made almost twice that if we had all tipped individually.Go figure....

And I figured that #36 was a third-party confirmation that the "donate what you deem appropriate" scheme is a solid one.